Survey of the Sciences Unit 4: The Science of Fireworks 7-7-14/7-14-14 What is a firework? An explosive or combustible used for display. In the 19th century the introduction of new ingredients such as magnesium and aluminum greatly heightened the brilliance of such displays. There are two main classes of fireworks‚ force-and-spark and flame. In force and spark compositions‚ potassium nitrate‚ sulfur‚ and finely ground charcoal are used‚ with additional ingredients that produce various types
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Bleeding‚ Leading‚ and Converging Matt Ceccato CMGT/557 March 29‚ 2013 Mike Goyden Bleeding‚ Leading‚ and Converging One definition of technology convergence states that it “is the process by which existing technologies merge into new forms that bring together different types of media and applications” (Conjecture Corporation‚ 2013). The iPhone demonstrates technology convergence. This product takes telephony technology and incorporates both basic and complex computer
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WHAT ARE CHALCOGELS? Chalcogels are a new type of aerogel that is chalcogen-based. Aerogels are a special type of material that presents a high surface area. Chalcogels are composed of metal-chalcogen moieties that are interconnected with a linking metal ion (Riley et al.‚2012). Figure 1 AeroGel INTRODUCING… TM Physical and Chemical Properties Chalcogels are a new family of aerogel that is not oxide-based (Katnatzidis and Bag‚ 2008). Zinc chalcogenide‚ like many other aerogels‚ have
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Battery Power Kevin McDonald Question How much power can I get from a tomato‚ a orange and a lemon and can it light up a small light bulb? Hypothesis If I put a copper nail and a zinc nail in a tomato‚ orange or lemon it should be able to power a small light bulb. Materials *few different citrus fruits *copper nail *galvanized (zinc) nail *LED light or opaque light bulb with a 2 inch lead *crocodile clip or electric tape *micro ammeter Procedures Step 1.Prepare your fruit for the
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Group 2 Science Investigatory Project I Title: Potato Battery II Objective: We only need a potato‚ a couple nails and a piece of wire to make a potato battery. It’s a fun science project that helps show the way things work in a battery by using everyday items we see around the house. The goal is to learn more about electricity‚ and possibly a few new science terms along the way. III Materials: * Two Potatoes * Two short pieces of heavy copper wire * Two common galvanized nails
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Purpose: To determine the colors of the Atomic Emission Spectra of several metallic ions. Materials: Safety glasses 10 test tubes Test tube rack Paper Pencil 50 mL beaker Bunsen burner Nichrome wire Barium Nitrate Copper Nitrate Strontium Nitrate Lithium Nitrate Potassium Nitrate Sodium Chloride Calcium Nitrate Unknown solutions A‚B‚ & C Hydrochloric Acid Wash bottle (with distilled water) Procedure: 1. Label the test tubes with the names of the solutions and unknowns. 2. Place
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Title: Redox Reaction Introduction: Some of the most important chemical reactions are Redox reactions. They are also known as oxidation-reduction reactions. This reaction passes one or more electrons from one species to another. The species that loses electrons are being oxidized while the species that gains electrons are reduced. The reaction occurs simultaneously. Numbers are given to each element in a chemical reaction to help us find out which element is oxidized and which is
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Chronoamperometry is one of several electrochemical techniques which quantify the oxidation or reduction current of electroactive molecules at an electrode. Oxidation or reduction can be induced by changing the applied voltage at the working electrode. The concentration of the electroactive molecules is proportional to the current produced by their oxidation or reduction‚ which allows one to determine the concentration of electroactive neurotransmitters and other biological molecules of interest
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Electrolysis design internal assessment Introduction to experiment Electrolysis is a method using a direct electric current to drive a non-spontaneous chemical reaction. It involves the stage in the separation of elements from naturally occurring sources such as ores. In this experiment‚ methods to alter rate of electrolysis will be attempted to be discovered. Although many contributing factors could affect the rate of electrolysis which could include internal energy within the electrolyte or
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Case Study Erosional and depositional landforms Mappleton Hornsea/Withernsea Scarborough Alkborough Maldives Studland Bay Location Spurn point Yorkshire Old Harry Dorset- stack East riding of Yorkshire Holderness coast North Yorkshire North The Maldives are a collection of Islands in the Indian Ocean. The Maldives are about 400 Miles southwest of India. Studland Bay is located in the Isle of Purbeck in Dorset Fact Depositional feature- spit The village of Mappleton‚ perched on
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